Four loop twist two, BFKL, wrapping and strings
High Energy Physics - Theory
2014-11-18 v4 High Energy Physics - Phenomenology
Abstract
The anomalous dimensions of twist two operators have to satisfy certain consistency requirements derived from BFKL. For N=4 SYM it was shown that at four loops, the anomalous dimensions derived from the all-loop asymptotic Bethe ansatz do not pass this test. In this paper we obtain the remaining wrapping part of these anomalous dimensions from string theory and show that these contributions exactly cure the problem and lead to agreement with both LO and NLO BFKL expectations.
Keywords
Cite
@article{arxiv.0811.4448,
title = {Four loop twist two, BFKL, wrapping and strings},
author = {Zoltan Bajnok and Romuald A. Janik and Tomasz Lukowski},
journal= {arXiv preprint arXiv:0811.4448},
year = {2014}
}
Comments
34 pages, 1 figure; v3: typos fixed, references added; v4: references added